Answer:
3.57
Step-by-step explanation:
P=SP -CP
=290-280=10
P%=
=
=
=3.57
Answer:
slope of line ax + by = c is -a/b
so, slope of 7x +2y =5 is -7/2
25% is a fourth of something so first round $34.99 to about $35 and just get one fouth of it which would be a little less than $9 but if you put it into the calculator it will tell you that it is about $8.75 (to calculate using the calculator you need to chane the percentage to a decimal and multiply it)